I normally go walking in bog standard cotton/poly socks, never have any issues with them but I don’t normally walk very long distances.

Did some research and the jury definitely says to wear two layers. I’m not at all keen on those thick wooly hiking socks, so I looked into mad high tech ones and bought a couple of pairs of double layer ones that are only slightly thicker than my usual ones.

Tried them out walking the dog today, and I had a slight sore spot on the pad (weirdly) of my heel after about forty minutes. I just took them off to have a look and there’s no damage or redness, but I do have a bit of a callus there, so maybe that’s the problem?

I’ll crack on with them and see.